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24/7 Cardholder Service
Canada and U.S.:
Lost or Stolen Cards
Canada and U.S.: 1.855.341.4643
International Collect: 1.515.343.8995
Please note that this email is not secure; it is for general inquiry only. Do NOT include your
account information. If you have a specific question about your account, please call Cardmember Service.
PO Box 82029 RPO Connaught
Calgary, AB T2R 0X1
Mastercard Payment Address
CP 6300 SUCC Centre Ville
Montréal, QC H3C 3L2
The Mortgage Alliance MasterCard is issued by Collabria Financial Services Inc. pursuant to a license from MasterCard International Incorporated. MasterCard and the MasterCard Brand Mark are registered trademarks of MasterCard International Incorporated.